So I bought a chip to enhance the performance of my 525i. I know it goes in the ECU, but how do you open that damn box? Do I need a special tool? It also looks as though I need to pry some tabs? Is this right?
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Chip Install, How To?
So I bought a chip to enhance the performance of my 525i. I know it goes in the ECU, but how do you open that damn box? Do I need a special tool? It also looks as though I need to pry some tabs? Is this right?
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